349869286 has 16 divisors (see below), whose sum is σ = 583406208. Its totient is φ = 156268800.

The previous prime is 349869187. The next prime is 349869293. The reversal of 349869286 is 682968943.

It is a happy number.

It is a super-2 number, since 2×349869286² = 244817034572299592, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216235 + ... + 217846.

It is an arithmetic number, because the mean of its divisors is an integer number (36462888).

Almost surely, 2^349869286 is an apocalyptic number.

349869286 is a deficient number, since it is larger than the sum of its proper divisors (233536922).

349869286 is a wasteful number, since it uses less digits than its factorization.

349869286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434127.

The product of its digits is 4478976, while the sum is 55.

The square root of 349869286 is about 18704.7931290351. The cubic root of 349869286 is about 704.6421307962.

The spelling of 349869286 in words is "three hundred forty-nine million, eight hundred sixty-nine thousand, two hundred eighty-six".